high
7.5
CWE
754
Advisory Published
Updated

CVE-2019-6856

First published: Mon Jan 06 2020(Updated: )

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M580, Modicon M340, Modicon Quantum, Modicon Premium (see security notification for specific versions) which could cause a Denial of Service when writing specific physical memory blocks using Modbus TCP.

Credit: cybersecurity@se.com

Affected SoftwareAffected VersionHow to fix
Schneider Electric Modicon M580 Firmware<2.80
Schneider Electric Modicon M580
Schneider Electric Modicon M340 Firmware<3.01
Schneider Electric Modicon M340
Schneider Electric TSXH5744M Firmware<3.20
Schneider Electric TSXH5744M Firmware
Schneider Electric TSXH5724M<3.20
schneider-electric tsxh5724m firmware
schneider-electric tsxp576634mc firmware<3.20
schneider-electric tsxp576634m firmware
Schneider Electric TSX P57554M Firmware<3.20
Schneider Electric TSXP57554M
schneider-electric tsxp575634m firmware<3.20
Schneider Electric TSXP575634M
Schneider Electric TSXP57454M Firmware<3.20
Schneider Electric TSXP57454M
schneider-electric tsxp574634m firmware<3.20
Schneider Electric TSXP574634M
schneider-electric tsxp57354m firmware<3.20
Schneider Electric TSXP57354MC
Schneider Electric TSXP573634M Firmware<3.20
Schneider Electric TSXP573634M
Schneider Electric TSXP57304M Firmware<3.20
Schneider Electric TSXP57304M Firmware
schneider-electric tsxp57254m firmware<3.20
schneider-electric tsxp57254m firmware
Schneider Electric TSXP572634M Firmware<3.20
Schneider Electric TSXP572634M
Schneider Electric TSXP57204M Firmware<3.20
Schneider Electric TSXP57204M
schneider-electric tsxp571634mc firmware<3.20
Schneider Electric TSXP571634M Firmware
Schneider Electric TSXP57154M Firmware<3.20
Schneider Electric TSXP57154M
Schneider Electric TSXP57104M<3.20
Schneider Electric TSXp57104MC
Schneider Electric 140CPU65150 Firmware<3.52
Schneider Electric 140CPU65150 Firmware
Schneider Electric 140CPU65160 Firmware<3.52
Schneider Electric 140CPU65160
Schneider Electric 140CPU65260 Firmware<3.52
Schneider Electric 140CPU65260C
Schneider Electric 140CPU67261 Firmware<3.52
Schneider Electric 140CPU67261 Firmware
Schneider Electric 140CPU67060 Firmware<3.52
Schneider Electric 140CPU67060 Firmware
Schneider Electric 140CPU67160 Firmware<3.52
Schneider Electric 140CPU67160 Firmware
Schneider Electric 140CPU67260<3.52
Schneider Electric 140CPU67260
Schneider Electric 140CPU65860<3.52
Schneider Electric 140CPU65860
Schneider Electric 140CPU67861 Firmware<3.52
schneider-electric 140cpu67861
Schneider Electric 140CPU65160S Firmware<3.52
Schneider Electric 140CPU65160S Firmware
Schneider Electric 140CPU67160S Firmware<3.52
Schneider Electric 140CPU67160S Firmware

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Reference Links

Frequently Asked Questions

  • Can CVE-2019-6856 lead to remote attacks?

    Yes, CVE-2019-6856 can be exploited remotely to trigger a Denial of Service condition in vulnerable devices.

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